Complete each sentence using a model that fits the space.I don't know why there weren't any buses yesterday. They пустоcould have been on strike but I'm not really sure.I пустоshould have revised more for my exams. I think I'll fail!He пустоcould have studied harder, but he was too lazy and that's why he failed the exam.I пустоcould have gone directly to college, but I decided to travel for a year.She пустоcould not have been on that flight because I just saw her at work.If I had known they were vegetarians, I пустоwould have made a salad.I’m sorry that I’m late for work. I пустоshould have woken up earlier.I пустоcould have lent you the money. Why didn’t you ask methe concertt was fantastic. You really пустоshould have come .You пустоshouldn't have tried to fix the roof yourself. you might have fallen off and been badly injured.